Results 61 to 70 of about 1,635 (114)

Hidden Diversity in the Populations of the Armored Catfish Ancistrus Kner, 1854 (Loricariidae, Hypostominae) from the Paraná River Basin Revealed by Molecular and Cytogenetic Data

open access: yesFrontiers in Genetics, 2017
Only one species of armored catfish, Ancistrus cirrhosus Valenciennes 1836, has been historically described in the basin of the Paraná River, from Misiones (Argentina).
Ana C. Prizon   +8 more
doaj   +1 more source

Descripción del cromosoma profásico en la meiosis I de Bostryx conspersus

open access: yesRevista Peruana de Biología, 2011
Bostryx es uno de los géneros de mayor diversidad dentro de los Orthalicidae (Gastropoda), siendo B. conspersus una especie endémica del ecosistema de Lomas, del desierto Costero peruano.
María Siles-Vallejos   +4 more
doaj   +1 more source

Anormalidades citogenéticas de líneas estables de fibroblastos bovinos

open access: yesRevista Científica, 2010
El cultivo de tejidos celulares en animales ha servido para el estudio de los fenómenos citológicos así como para el mapeo de genes a través de citogenética molecular, híbridos somáticos y radiación de híbridos.
Marcos De Donato   +1 more
doaj  

The tight bond between Fanconi anemia and aging

open access: yesFrontiers in Aging
Fanconi anemia (FA) is a rare genetic disorder characterized by genomic instability, bone marrow failure, physical abnormalities, and increased cancer susceptibility. Growing evidence suggests that.
Marco Antonio Mejía-Barrera   +15 more
doaj   +1 more source

What defines a bimodal karyotype? Bimodality revisited

open access: yesCaryologia
Bimodal karyotypes, initially defined by Avdulov, are characterized by one large and one small set of chromosomes, reflecting a particular type of karyotype asymmetry. Despite later discussions by Stebbins, the absence of a quantitative criterion has led
Leylson Ferreira Araújo   +3 more
doaj   +1 more source

Mapping of Repetitive Sequences in Brachyhypopomus brevirostris (Hypopomidae, Gymnotiformes) from the Brazilian Amazon

open access: yesAnimals
Brachyhypopomus (Hypopomidae, Gymnotiformes) is a monophyletic genus consisting of 28 formally described species. Karyotypic data are available for 12 species. The same karyotype is described for two species (B. brevirostris and B. hamiltoni), as well as
Paula Pinto Rodrigues   +5 more
doaj   +1 more source

Caracterización cromosómica de dos especies icticas nativas; guapucha, (Grundulus bogotensis) y capitan, (Eremophilus mutisii), de la sabana de Bogotá

open access: yesActa Biológica Colombiana, 1992
Grundulus bogotensis Humboldt 1821 (Guapucha) and Eremophilus mutisii Humboldt 1805 (Capitán), from the Neusa reservoir (Cundinamarca-Colombia), were characterized on the basia cariology. The Guapucha, Grundulus bogotensis (Pisces: characidae), exhibited
Julio A. Gonzalez   +2 more
doaj  

Cien cariotipos fetales acreditados en Costa Rica, años 2009 y 2010 One Hundred Accredited Fetal Karyotypes in Costa Rica During 2009 and 2010

open access: yesActa Médica Costarricense, 2011
Objetivo: La identificación de cromosomopatía fetal es un factor importante para el mejor manejo perinatal y pediátrico en los embarazos de alto riesgo.
Isabel Castro-Volio   +2 more
doaj  

Correction: Identification of variants in genes associated with hypertrophic cardiomyopathy in Mexican patients. [PDF]

open access: yesMol Genet Genomics, 2023
García-Vielma C   +6 more
europepmc   +1 more source

Contribución al conocimiento del género Stachys en la provincia de Tucumán

open access: yesLilloa, 1973
Este trabajo aborda las observaciones anatómicas y cariológicas de la especie Stachys petiolosa Briq., en las que se utilizaron muestras de la llanura de la provincia de Tucumán. Las observaciones anatómicas incluyen el estudio de raíz, tallo y hoja.
Ana María F. de Fernández   +1 more
doaj  

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